AirHint found the following cheapest return flights from Montreal (YUL) to Athens (ATH) in June 2025 (see full year).

Return flights

12 Jun - 19 Jun	Delta
13 Jun - 21 Jun	Delta
15 Jun - 25 Jun	KLM
13 Jun - 22 Jun	KLM
15 Jun - 20 Jun	Delta
15 Jun - 22 Jun	KLM
14 Jun - 24 Jun	Delta
12 Jun - 21 Jun	KLM
16 Jun - 28 Jun	Delta
14 Jun - 17 Jun	Porter Airlines (Canada) Ltd
30 Jun - 09 Jul	KLM
30 Jun - 07 Jul	KLM
30 Jun - 17 Jul	KLM
14 Jun - 01 Jul	Air Transat	direct
29 Jun - 11 Jul	KLM
18 Jun - 03 Jul	Air France
23 Jun - 23 Jul	Air Transat
23 Jun - 08 Jul	Air Transat
22 Jun - 09 Jul	Air Transat
22 Jun - 08 Jul	Air Transat

Also check the deals for one-way flights from Montreal to Athens in June.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Athens

Cheap car rent in Athens

Cheapest return flights from Montreal to Athens in June from $722

Return flights